Android Tablet Problem

I just bought a Irulu eXpro X1. I'm trying to connect it to my PC (Dell Optiplex 745). The PC recognizes the tablet OK and assigns it 2 drive letters. However, when I try to copy a movie to either of the drive letters, I get a message telling me to "insert a disk in the drive". The PC seems to be recognizing the tablet as a CD-ROM drive. Are there any drivers I should install.